GCA/TROPEL 9000 Surface Flatness Analyzer

GCA/TROPEL 9000 Surface Flatness Analyzer Serial Number 202579 Fringe Sensitivity Range: 0.5 to 10.0 ? per Fringe System Accuracy: 0.25? Maximum Test Area: 5.0” x 4.5” Maximum Resolution: 0.10? Tilt Adjustable Work Holder for 4” Wafers Light Source: HeNe Laser Dimensions: 23”(h) X 18 ½” (w) X 10 ½” (d)